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Texas Instruments MSP430F2011IRSAT
- Part No.:
- MSP430F2011IRSAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430F2011IRSAT.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:515
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Product details
Overview
MSP430F2011IRSAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2KB+256B flash memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It operates from 1.8 V to 3.6 V, achieves active-mode current of 220 µA at 1 MHz/2.2 V, and supports sub-1-µs wake-up from standby mode. It is used in battery-powered sensor nodes requiring analog signal acquisition, low-energy computation, and minimal footprint.
For engineers reviewing the MSP430F2011IRSAT datasheet, MSP430F2011IRSAT pinout, MSP430F2011IRSAT application, or MSP430F2011IRSAT equivalent, key selection criteria include its 14-pin TSSOP (RSAT) package, absence of ADC or USI peripherals (distinguishing it from F20x2/F20x3 variants), integrated comparator_A+, and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430F2011IRSAT implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz, plus internal low-frequency and external crystal (32 kHz) support.
It features five software-selectable low-power modes (LPM0–LPM4), with LPM4 drawing only 0.1 µA (RAM retention). The device includes a versatile analog comparator with eight-channel input multiplexer and programmable hysteresis, but no A/D converter or serial interface - confirming its identity as the MSP430F20x1 family member per SLAS491I Rev. I.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle time at 16 MHz |
| Memory | 2KB + 256B flash (main + info segments), 128B RAM - sufficient for compact firmware with calibration data retention |
| Supply Voltage | 1.8 V to 3.6 V - enables direct operation from single-cell Li-ion or two-cell alkaline batteries |
| Active Current | 220 µA at 1 MHz, 2.2 V - defines baseline power budget for continuous sensing tasks |
| Standby Current | 0.5 µA - supports multi-year battery life in intermittently active sensor applications |
| Wake-up Time | <1 µs from standby to active mode - critical for event-triggered measurement without latency penalty |
| Comparator | Comparator_A+ with 8-channel analog mux, CAOUT output, and selectable reference - enables threshold detection without ADC overhead |
Pinout & Package
Package: 14-pin Thin Shrink Small-Outline Package (TSSOP), suffix 'RSAT', body size 5.0 mm × 4.4 mm, 0.65 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ACLK/CA0 | Port 1 bit 0 / Timer_A clock input / Auxiliary clock output / Comparator_A+ input 0 | Primary timing and analog sensing input; shared function requires careful peripheral initialization sequence |
| P1.1/TA0/CA1 | Port 1 bit 1 / Timer_A capture/compare 0 / Comparator_A+ input 1 | Enables edge-triggered event capture or comparator-based wake-up on analog threshold crossing |
| P1.2/TA1/CA2 | Port 1 bit 2 / Timer_A capture/compare 1 / Comparator_A+ input 2 | Supports dual-input comparison or independent timer channel for PWM or interval timing |
| P1.3/CAOUT/CA3 | Port 1 bit 3 / Comparator_A+ output / input 3 | Direct comparator output usable for interrupt generation or driving external logic without software polling |
| P1.4/SMCLK/CA4/TCK | Port 1 bit 4 / Sub-main clock output / Comparator_A+ input 4 / JTAG test clock | Shared SMCLK output allows synchronous peripheral clocking; TCK reuse simplifies debug interface routing |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface reduces PCB footprint; NMI capability supports critical fault handling |
| TEST/SBWTCK | Test mode select / Spy-Bi-Wire clock | Enables low-pin-count programming and emulation without full JTAG header |
| VCC, VSS | Power supply and ground | Dual supply pins ensure stable core voltage delivery; no separate analog/digital rails required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode (RAM retention) enables decade-scale battery life in maintenance-free deployments |
| On-chip comparator with 8-channel mux | Eliminates need for external comparators in threshold-detection systems, reducing BOM and board area |
| Four factory-calibrated DCO frequencies | ±1% accuracy at 1/8/12/16 MHz enables precise timing without external crystal in cost-sensitive designs |
| Five configurable low-power modes | LPM0–LPM4 allow granular power-state control aligned to real-time task scheduling requirements |
| Code protection via security fuse | Prevents unauthorized firmware extraction, supporting IP protection in commercial sensor products |
| Spy-Bi-Wire debug interface | 2-pin (SBWTDIO + SBWTCK) programming and emulation reduces debug footprint vs. 4-pin JTAG |
Applications
| Industrial Temperature Sensor Node | Smart Meter Tamper Detection |
|---|---|
|
Use Scenario: Battery-powered thermistor-based temperature monitor deployed in HVAC ducts or remote enclosures. IC Role / Device Role / Timing Role: MSP430F2011IRSAT performs periodic comparator-driven threshold checks, wakes on deviation, logs data to flash, and transmits via external RF link. Use Value: 0.5 µA standby current extends 2xAA battery life beyond 5 years; built-in comparator eliminates external op-amp and reference. |
Use Scenario: Tamper switch monitoring in utility meters detecting enclosure opening or magnetic interference. IC Role / Device Role / Timing Role: MSP430F2011IRSAT continuously samples reed switch or Hall sensor via comparator, triggers immediate LPM0→active transition on event, and initiates secure log write. Use Value: Sub-1-µs wake-up ensures no tamper event is missed; flash memory stores tamper timestamps with security fuse preventing log tampering. |
| Wireless Smoke Detector MCU | Portable Gas Leak Detector |
|
Use Scenario: UL-listed smoke detector using photoelectric chamber and electrochemical CO sensor, powered by 9 V battery. IC Role / Device Role / Timing Role: MSP430F2011IRSAT manages optical pulse timing, compares chamber signal against reference level via comparator, and drives piezo alarm on threshold breach. Use Value: 220 µA active current at 1 MHz enables fast chamber sampling without excessive battery drain; brownout detector prevents erratic behavior during low-battery alarm phase. |
Use Scenario: Handheld gas detector measuring VOC concentration with metal-oxide sensor requiring bias heating and analog signal conditioning. IC Role / Device Role / Timing Role: MSP430F2011IRSAT controls heater PWM via Timer_A, monitors sensor output with comparator hysteresis, and manages low-power sleep between readings. Use Value: Integrated Timer_A and comparator enable closed-loop heater control and analog thresholding without external ICs, reducing system cost and component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power comparator-based microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2001IPW | 1KB flash, same 128B RAM, identical comparator and timer peripherals, 14-pin TSSOP | Lower code capacity limits firmware complexity; suitable for simpler threshold-only logic without data logging | Select when application fits within 1KB flash and requires identical low-power profile and pinout |
| MSP430F2012IPW | Includes 10-bit ADC10 (8 channels, 200 kSPS) and USI (SPI/I²C), same flash/RAM, same package | Enables analog-to-digital conversion and serial communication - adds functionality not present in MSP430F2011IRSAT | Select when design requires digitized sensor data or host communication; requires firmware and layout updates |
Compared with MSP430F2001IPW, MSP430F2011IRSAT provides double flash for enhanced firmware features; compared with MSP430F2012IPW, it trades ADC and USI for lower system cost and reduced power in pure comparator-triggered applications.
Availability
MSP430F2011IRSAT is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering subsystems, and portable safety devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MSP430F2011IRSAT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power microcontrollers.
The MSP430F20xx series was designed specifically for battery-operated measurement and sensing applications where nanowatt-level power management, integrated analog functions, and compact footprint are essential.
FAQ
What is the maximum operating frequency of the MSP430F2011IRSAT?
The MSP430F2011IRSAT supports a maximum system clock (MCLK) of 16 MHz, achieved via its factory-calibrated digitally controlled oscillator (DCO). This frequency is confirmed in the SLAS491I datasheet Section "Basic Clock Module Configurations" and enables high-speed instruction execution while maintaining ultra-low power consumption in active mode.
Does the MSP430F2011IRSAT include an analog-to-digital converter (ADC)?
No, the MSP430F2011IRSAT does not include an ADC. It belongs to the MSP430F20x1 family, which features only the analog comparator_A+ module. ADC functionality is present in the MSP430F20x2 (10-bit ADC10) and MSP430F20x3 (16-bit SD16_A) variants, as explicitly differentiated in the SLAS491I datasheet Family Members table and functional block diagrams.
What debug interface does the MSP430F2011IRSAT support?
The MSP430F2011IRSAT supports the Spy-Bi-Wire (SBW) interface using two pins: TEST/SBWTCK and RST/NMI/SBWTDIO. This 2-wire protocol enables full programming, debugging, and emulation - eliminating the need for a 4-pin JTAG header and reducing PCB routing complexity while maintaining full development visibility.
Is the MSP430F2011IRSAT pin-compatible with other MSP430F20xx devices in TSSOP packages?
Yes, the MSP430F2011IRSAT shares identical pinout and package dimensions (14-pin TSSOP, RSAT) with all MSP430F20xx variants offered in the PW package, including MSP430F2001IPW, MSP430F2012IPW, and MSP430F2013IPW. However, peripheral mapping differs - e.g., P1.4 on MSP430F2011IRSAT is SMCLK/CA4/TCK, whereas on MSP430F2012IPW it is SMCLK/A4/VREF+/TCK - requiring firmware adaptation.
What is the purpose of the CAOUT pin on the MSP430F2011IRSAT?
The CAOUT pin (P1.3) serves as the output of the integrated Comparator_A+ module. When enabled, it drives a digital logic level reflecting the result of the analog comparison, allowing direct connection to interrupt inputs, GPIOs, or external logic without CPU intervention - enabling ultra-low-latency, hardware-accelerated threshold detection in the MSP430F2011IRSAT.
MSP430F2011IRSAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 2KB (2K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2011IRSAT FAQ
1.How can I place an order for MSP430F2011IRSAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2011IRSAT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F2011IRSAT reliable?
The price and inventory of MSP430F2011IRSAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2011IRSAT is usually 5 days.
3.What payment methods are accepted for MSP430F2011IRSAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2011IRSAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2011IRSAT?
MSP430F2011IRSAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2011IRSAT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F2011IRSAT?
For technical support, including MSP430F2011IRSAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2011IRSAT requirements.
6.How does Aetrix verify that MSP430F2011IRSAT is sourced from the original manufacturer or authorized distributors?
All MSP430F2011IRSAT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F2011IRSAT meets industry standards.
7.What is the process for return or replacement of MSP430F2011IRSAT?
All MSP430F2011IRSAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2011IRSAT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F2011IRSAT part is unused and in its original packaging.
Return procedure for MSP430F2011IRSAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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